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Changements abrupts dans les communautés de poissons de l'estuaire de la Gironde : un indicateur des changements écologiques dans les écosystèmes estuariens

dc.rights.licenseopenen_US
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorCHEVILLOT, X.
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorPIERRE, M.
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorRIGAUD, A.
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorDROUINEAU, Hilaire
hal.structure.identifierInstitut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
dc.contributor.authorCHAALALI, A.
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSAUTOUR, Benoit
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorLOBRY, Jérémy
dc.date.accessioned2024-10-04T08:06:17Z
dc.date.available2024-10-04T08:06:17Z
dc.date.issued2016
dc.identifier.issn0171-8630en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/202247
dc.description.abstractEnFor decades, global climate change has directly and indirectly affected the structure and function of ecosystems. Abrupt changes in biodiversity have been observed in response to linear or sudden modifications to the environment. These abrupt shifts can cause long-term reorganizations within ecosystems, with communities exhibiting new functional responses to environmental factors. Over the last 3 decades, the Gironde estuary in southwest France has experienced 2 abrupt shifts in both the physical and chemical environments and the pelagic community. Rather than describing these shifts and their origins, we focused on the 3 inter-shift periods, describing the structure of the fish community and its relationship with the environment during these periods. We described fish biodiversity using a limited set of descriptors, taking into account both species composition and relative species abundances. Inter-shift ecosystem states were defined based on the relationship between this description and the hydro-physico-chemical variables and climatic indices defining the main features of the environment. This relationship was described using generalized linear mixed models on the entire time series and for each inter-shift period. Our results indicate that (1) the fish community structure has been significantly modified, (2) environmental drivers influencing fish diversity have changed during these 3 periods, and (3) the fish-environment relationships have been modified over time. From this, we conclude a regime shift has occurred in the Gironde estuary. We also highlight that anthropogenic influences have increased, which re-emphasizes the importance of local management in maintaining fish diversity and associated goods and services within the context of climate change.
dc.language.isoENen_US
dc.rightsAttribution 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/*
dc.subjectBiodiversité
dc.subjectEstuaire
dc.subjectEcosysteme
dc.subjectIndicateur écologique
dc.subjectChangement climatique global
dc.subject.enbiodiversity
dc.subject.enecosystems
dc.subject.enecological indicators
dc.subject.englobal climate change
dc.subject.enestuaries
dc.titleChangements abrupts dans les communautés de poissons de l'estuaire de la Gironde : un indicateur des changements écologiques dans les écosystèmes estuariens
dc.title.enAbrupt shifts in the Gironde fish community: an indicator of ecological changes in an estuarine ecosystem
dc.typeArticle de revueen_US
dc.identifier.doi10.3354/meps11681en_US
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Bioclimatologieen_US
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Ecosystèmesen_US
dc.subject.halSciences de l'environnement/Biodiversité et Ecologieen_US
dc.subject.halSciences de l'environnement/Milieux et Changements globauxen_US
bordeaux.journalMarine Ecology Progress Seriesen_US
bordeaux.page137-151en_US
bordeaux.volume549en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamECOBIOCen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-01411213
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.title=Changements%20abrupts%20dans%20les%20communaut%C3%A9s%20de%20poissons%20de%20l'estuaire%20de%20la%20Gironde%20:%20un%20indicateur%20des%20changements%20%C3%A9cologiques%2&rft.atitle=Changements%20abrupts%20dans%20les%20communaut%C3%A9s%20de%20poissons%20de%20l'estuaire%20de%20la%20Gironde%20:%20un%20indicateur%20des%20changements%20%C3%A9cologiques%&rft.jtitle=Marine%20Ecology%20Progress%20Series&rft.date=2016&rft.volume=549&rft.spage=137-151&rft.epage=137-151&rft.eissn=0171-8630&rft.issn=0171-8630&rft.au=CHEVILLOT,%20X.&PIERRE,%20M.&RIGAUD,%20A.&DROUINEAU,%20Hilaire&CHAALALI,%20A.&rft.genre=article


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